Transcript
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7/16/2019 27323738 US Patent 3 899 144 Powder Contrail Generation
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7/16/2019 27323738 US Patent 3 899 144 Powder Contrail Generation
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7/16/2019 27323738 US Patent 3 899 144 Powder Contrail Generation
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7/16/2019 27323738 US Patent 3 899 144 Powder Contrail Generation
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